20464933 has 4 divisors (see below), whose sum is σ = 20556928. Its totient is φ = 20372940.

The previous prime is 20464909. The next prime is 20464937. The reversal of 20464933 is 33946402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20464933 - 2⁹ = 20464421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20464895 and 20464904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20464937) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45663 + ... + 46108.

It is an arithmetic number, because the mean of its divisors is an integer number (5139232).

Almost surely, 2^20464933 is an apocalyptic number.

It is an amenable number.

20464933 is a deficient number, since it is larger than the sum of its proper divisors (91995).

20464933 is an equidigital number, since it uses as much as digits as its factorization.

20464933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91994.

The product of its (nonzero) digits is 15552, while the sum is 31.

The square root of 20464933 is about 4523.8184092645. The cubic root of 20464933 is about 273.5290407173.

The spelling of 20464933 in words is "twenty million, four hundred sixty-four thousand, nine hundred thirty-three".